ABSTRACT
The reduction of synthetic zinc-ferrite and pure zinc oxide pellets in a stream of 20% H₂and 80% N₂were studied at temperature from 900℃ to 1100℃. The result of the study leads to the conclusion that the reduction rate of ZnO in the zinc-ferrite is slower in the first stage and faster in the second stage than that of pure ZnO. The lagging of the reduction rate of ZnO in the zinc-ferrite in the first stage is caused by the result that almost no reduction of ZnO takes place until iron oxide has been completely reduced to Fe. At temperature of 1100℃, the reduction rate of ZnO in the zinc-ferrite was nearly as high as that of pure ZnO. In this experiment, the activation energy for reduction of pure zinc oxide by H₂gas was 26.8 kcal.
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